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Article
Effects of Static and Dynamic Forces on Surface Viscoelastic Response of Polymer Films in Scanning Viscoelasticity Microscopy
Scanning force microscopy with force-modulation mode enables one to gain direct insights into local viscoelastic properties at polymer surfaces. Changing modulation condition such as dynamic amplitude and freq...
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Article
Thermal molecular motion in polystyrene thin and ultrathin films by dynamic viscoelastic measurement
Segmental motion in polystyrene (PS) thin and ultrathin films supported on substrates was studied by dynamic viscoelastic measurement. A polymer film, which has the thickness comparable to or less than twice o...
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Article
Activated physical properties at air-polymer interface
The surface molecular motion of monodisperse polystyrene (PS) films was examined using scanning viscoelasticity microscopy (SVM) in conjunction with lateral force microscopy (LFM). The dynamic storage modulus,E′,...
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Article
Grazing Incidence X-ray Diffraction Study on Surface Crystal Structure of Polyethylene Thin Films
Crystal structure in thin films of melt-crystallized and annealed polyethylene (PE) was examined by grazing incidence X-ray diffraction measurements. Choosing appropriate incident angles of X-rays to the films...
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Article
Further Study of Chain End Effect on Surface Mobility in Monodisperse Polystyrene Films
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Article
Effect of Cyclic Fatigue Conditions on Nonlinear Dynamic Viscoelasticity and Fatigue Behaviors for Short Glass-Fiber Reinforced Nylon 6
Fatigue behaviors of short glass-fiber reinforced nylon 6 (GF/Ny6) under three cyclic fatigue conditions, tension–tension (T–T), tension–compression (T–C) and compression–compression (C–C), were investigated o...
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Article
Surface Relaxation Processes of Poly(methyl methacrylate) Brushes Prepared by Atom Transfer Radical Polymerization
Well-defined poly(methyl methacrylate) (PMMA) brush layers were prepared onto silicon wafers by surface-initiated atom transfer radical polymerization using 2-(4-chlorosulfonylphenyl)-ethyltrichlorosilane as a...
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Article
Effect of Interfacial Interaction between Glass-Fiber and Matrix Nylon-6 on Nonlinear Dynamic Viscoelasticity and Fatigue Behavior for Glass-Fiber Reinforced Nylon-6
Effect of (glass-fiber/matrix nylon-6) interfacial interactions on fatigue behaviors of glass-fiber reinforced nylon-6 (GF/Ny6) under a strain controlled condition was investigated on the basis of in situ nonline...
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Article
Effect of polyester structure on the interaction parameters and morphology development of ternary blends: Model for high performance adhesives and coatings
Studies were conducted on ternary blends consisting of poly(propylene oxide) and poly(methyl methacrylate co n-butyl methacrylate) blended with either poly(hexamethylene adipate) or poly(hexamethylene sebacate). ...
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Article
Polymer-stabilized liquid crystal blue phases
Blue phases are types of liquid crystal phases that appear in a temperature range between a chiral nematic phase and an isotropic liquid phase. Because blue phases have a three-dimensional cubic structure with...
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Article
Plasma-Grafting of Polymers with Pendant Oligo(oxyethylene) Chains onto the Surface of a Polyaniline Electrode
This paper reports experiments on forming a layer composed of graft polymers with pendant oligo(oxyethylene) chains directly onto the surface of a polyaniline film by plasma-graft polymerization. The graft pol...
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Article
Light Transmission-Light Scattering Reverse Mode Switching of (Liquid Crystalline Polymer/Liquid Crystal)Composite System
Conventional (polymer/liquid crystal) composite films exhibit the normal mode electro-optical switching, that is, the light scattering-light transmission switching upon electric field OFF-ON states, respective...
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Article
Molecular Weight Dependence of Hysteresis in Electro-Optical Switching of (Polymer/Liquid Crystal) Composite Systems
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Article
Chain End Group-Induced Surface Ordering in Poly(styrene-b-4-vinylpyridine) Symmetric Diblock Copolymer Films
The proton-terminated and fluoroalkyl-terminated poly(styrene-b-4-vinylpyridine) [P(St-b-4VP)] symmetric diblock copolymers were synthesized by a sequential anionic polymerization. The surface chemical compositio...
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Article
Effect of Chain End Group–Substrate Interaction on Surface Molecular Motion of Polystyrene Ultrathin Films
Surface molecular motions of monodisperse proton-terminated polystyrene (PS-H), monocarboxyl-terminated PS (PSCOOH) and dicarboxyl-terminated PS (α,ω-PS(COOH)2) ultrathin films were investigated on the basis of l...
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Article
Polymer Surface-Induced Order of Liquid Crystalline Molecular Alignment Based on Nematic–Isotropic Phase Transition Behavior
Alignment order of liquid crystal (LC) molecules at the (polymer/LC) interface was evaluated by comparing nematic-isotropic phase transition temperatures (TNI) at the interface with TNI in the bulk. The thickness...
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Article
Effect of End Group–Substrate Interaction on Aggregation Structure of Polystyrene Ultrathin Films
The aggregation structure of proton-, monocarboxyl-, and dicarboxyl terminated polystyrene (PS) ultrathin films spin-coated onto different substrate surfaces was investigated on the basis of atomic force micro...
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Article
Surface Modification of Polyaniline Film by Plasma-Graft Polymerization and Its Effect on the Redox Reaction
Poly(vinylsulfonic acid) chains having cation-exchangeable groups are introduced onto a surface of polyaniline film by means of plasma-graft polymerization, and the redox reaction mechanism of the plasma-graft...
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Article
Relationships between lateral force and viscoelastic properties for amorphous polymer films based on lateral force microscopy
The relationships between lateral force and viscoelastic properties of amorphous polymer surfaces with Tg’s lower and higher than room temperature (295 K, RT) and their blend systems have been studied on the b...
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Article
Low Voltage Light Switching of Hybrid-Type Cell Composed of (Polymer/Liquid Crystal) Composite System
(Polymer/liquid crystal: LC) composite films consisting of a continuous LC phase embedded in a three-dimensional network of polymer matrix were prepared by a solvent-induced phase separation method. The (compo...
